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Problems when building DSP/BIOS i2c and spi samples for the 6747 pspdrivers

when I get pspdrivers form ti's web . but I can't link i2c and spi samples.

I use CCS3.3 81.6  And my DSP/BIOS version is    5.41.09.34  Code generation tools is v4.1.4

when I build I2C sample , the error is

<Linking>

 undefined      first referenced                                                                 
  symbol            in file                                                                      
 ---------      ----------------                                                                 
 _spiParams     C:\\ti\\pspiom\\examples\\evm6747\\i2c\\edma\\build\\ccs3\\Debug\\i2cSamplecfg.obj
 _spi_IOMFXNS   C:\\ti\\pspiom\\examples\\evm6747\\i2c\\edma\\build\\ccs3\\Debug\\i2cSamplecfg.obj
 _user_spi_init C:\\ti\\pspiom\\examples\\evm6747\\i2c\\edma\\build\\ccs3\\Debug\\i2cSamplecfg.obj

error: unresolved symbols remain
error: errors encountered during linking;
   "C:/ti/pspiom/examples/evm6747/i2c/edma/build/ccs3/../../bin/Debug/i2cSample
   .out" not built

>> Compilation failure

spi sample is

<Linking>

 undefined first referenced                                                                 
  symbol       in file                                                                      
 --------- ----------------                                                                 
 SDRAM$B   C:\\ti\\pspiom\\examples\\evm6747\\spi\\edma\\build\\ccs3\\Debug\\spiSamplecfg.obj
 SDRAM$L   C:\\ti\\pspiom\\examples\\evm6747\\spi\\edma\\build\\ccs3\\Debug\\spiSamplecfg.obj

error: unresolved symbols remain
error: errors encountered during linking;
   "C:/ti/pspiom/examples/evm6747/spi/edma/build/ccs3/../../bin/Debug/spiSample
   .out" not built

>> Compilation failure

 

how can I solve those probloms?    thanks!!!!